CN202949130U - Real-time measurement and control system for laser power - Google Patents
Real-time measurement and control system for laser power Download PDFInfo
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- CN202949130U CN202949130U CN 201220624830 CN201220624830U CN202949130U CN 202949130 U CN202949130 U CN 202949130U CN 201220624830 CN201220624830 CN 201220624830 CN 201220624830 U CN201220624830 U CN 201220624830U CN 202949130 U CN202949130 U CN 202949130U
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Abstract
The utility model relates to a real-time measurement and control system for laser power and belongs to the field of photoelectron, laser and automation instrument application. The system comprises a processor (5), a display and input module (6), a power measurement module (8), a laser console (4) and a light splitting module (2). The laser console (4) is connected with a laser (3), and the light splitting module (2) is used for being placed at an emission end of the laser (3); the input end of the processor (5) is connected with the output end of the input module (6); and the output end of the processor (5) is connected with the input ends of the light splitting module (2), the laser console (4) and the display and input module (6) respectively. The processor (5) is connected with the output end of a power meter probe (7), and the input end of the power meter probe (7) is disposed at the emission end of reflected light of the light splitting module (2). By means of the real-time measurement and control system, information of output light power of the laser can be fed back in real time, and effective adjustment can be performed.
Description
Technical field
The utility model relates to a kind of real-time of guaranteeing that laser output power is stable, belongs to photoelectron, laser and automation instrument application.
Background technology
As an important milestone of Development of Human Civilization progress, electronic technology has experienced development and the innovation of more than 100 year, has become a vital part in people's life.It is convenient that the microminiaturization of electronic technology, intelligent life of constantly giving people and production bring, and increases productivity, and accelerates production efficiency, energy savings etc., and as the application of measuring technique, laser technology is constantly brought pleasantly surprised to people and is broken through.Be accompanied by reaching its maturity of laser technology, laser becomes important instrument in human lives's production.Laser technology and multi-disciplinary combination make the production application of laser more abundant.The combination of laser technique and automatic technology makes laser control and uses more intellectuality.
From MCU to RAM, DSP is to FPGA etc., the application of embedded system is extensively promoted, the mode of production is moved towards automation from mechanization.Automation is the important tool of world today's productivity development with intellectuality, is the forward position that the international scientific technology is used.As the streamline mounter people of factory, the intelligent robot of Underground resource etc.; Realize the spacecraft of mankind's space resources exploitation, the satellite of radio communication etc.At present, the development and utilization technology of automation and intelligentification instrument and meter is very ripe, is applied to live every field in producing of people, for people produce bring convenient.Sensing technology under laser system makes sensing accuracy greatly promote; Utilize the laser preparation of nano material, widened research of nano material etc.But in the use of laser, due to the various factors impact, the Output optical power of laser and beam quality can change, and cause being restricted in the application of scientific research field.For the power stability of Laser output, need to realize that power stage regulates automatically in conjunction with the automation instrument technology.
The utility model content
The defective that the decay that the purpose of this utility model is to solve laser output power brings to the work of application.Provide a kind of in laser works Real-Time Monitoring laser power and feed back to laser controller, realize the Artificial Intelligence Instrument that laser output power is stable.This instrument utilizes intelligent chip and external circuit thereof to realize the processing of the measurement of laser output power, data and the adjusting of laser output power, finally guarantees the stable of laser output power.The utility model can embed the part that Laser Control System becomes laser, also can be independent of outside laser as a kind of FEEDBACK CONTROL instrument.
To achieve these goals, the utility model has been taked following technical scheme:
The laser power real-time comprises processor 5, shows and input module 6 power measurement module 8, the laser control platform 4 that is connected with laser 3 and for the spectral module 2 of the exit end that is placed on laser 3; In a part of laser generation of spectral module 2 transmission, a part of laser reflects; The input of processor 5 is connected with the output of demonstration with input module 6; The output of processor 5 is connected with spectral module 2, laser control platform 4, demonstration and the input of input module 6 respectively.Processor 5 is connected through the output of power measurement module 8 with power meter probe 7, and the input of power meter probe 7 is positioned at the catoptrical exit end of spectral module 2.
Demonstration and input module 6 are used for showing current lasers Output optical power state, operating time, and the observing and controlling target component is set; Target component comprises: the target power value that observing and controlling time, TT ﹠ C and needs are stable.
Described spectral module 2 comprises shutter, blade, spectroscope.
In the course of work, laser 3 is to Laboratory Module 1 Output of laser, and in the laser propagation process, through the spectral module 2 in the middle of light path, a part of light is reflected to power meter probe 7, and a part of light is inputted into Laboratory Module 1 through spectral module 2 transmissions.Power measurement module 8 is measured current catoptrical luminous power by the signal intensity of detection power meter probe 7, and by the communication data line, catoptrical optical power value is fed back to processor 5.Processor 5 calculates by the splitting ratio of catoptrical optical power value and spectral module 2 laser power value that transmission enters Laboratory Module, and the experiment laser power value that will calculate is compared with the predefined observing and controlling desired value of user.If the experiment laser power value does not carry out the adjusting of laser power in target range.If exceeded the target range of experiment laser power value, processor 5 will carry out regulation scheme and select, regulate again the Output optical power of laser by laser control platform 4, until the work laser power value stops adjusting in target range, with the Output optical power of this stable laser.
The user can observe current lasers Output optical power state, operating time by demonstration and input module 6, and the observing and controlling target component is set.Target component comprises: the target power value that observing and controlling time, TT ﹠ C and needs are stable.
The utility model can be obtained following beneficial effect:
The utility model has been completed the output of laser and the combination of automation instrument technology, is intended to the information of real-time feedback laser Output optical power, and effectively regulates, and makes the laser beam of laser stable output light intensity.Avoided experiment or produced and carry out middle laser optical power attenuation to experiment or produce unnecessary error and the loss that brings.Consider that the work of laser itself has the control platform of automation, therefore the utility model is by design flexibly, make this utility model both can with the external use of laser, also can combine together by use and the laser control platform that platform is controlled in embedding.
Description of drawings
Fig. 1 laser power real-time principle layout
In figure: 1, Laboratory Module, 2, spectral module, 3, laser, 4, the laser control platform, 5, processor, 6, demonstration and input module, 7, the power meter probe, 8, power measurement module.
Embodiment
The utility model is described in further detail below in conjunction with Fig. 1:
This laser power real-time is the total instrument and meter formula system of a kind of software and hardware.Hardware is used for realizing measurement and the control of laser power, and software is used for realizing that timing controlled hardware, laser power data analysis and target component are set and processing.
Originally be embodied as the laser power real-time, be operated in and utilize in laser production and experiment, complete real-time measurement and feedback to the laser power parameter, the Output optical power of stable laser timely and effectively, concrete environment for use, as shown in Figure 1.This enforcement selects the single-chip microcomputer of STC product as processor 5 cores according to specification requirement.The basic circuit module has: the processing that external crystal-controlled oscillation is used for the time reaches the adjusting that setting shows with information, laser control platform 4 is used for laser power that accurate control time, demonstration and input module 6 be used for parameter and RS232 serial communication and is used for and the communicating by letter of power meter.The specific works pattern has two kinds, and difference is spectroscopical selection of spectral module 2 and the collocation of TT ﹠ C.For working method 1.After start, the user can arrange the page or the experiment page by the introduction of keyboard selective system, parameter in demonstration and input module 6 according to demand.The user can be from reading system recommended information, configuration information and experiment information on liquid crystal display screen.In the parameter page, operating time, observing and controlling cycle and target power can be set.The experiment page can the start and stop experiment.After setting was completed, some beating keyboard acknowledgement key can be preserved target component, display screen prompting " arranging successfully " after preserving successfully.Can not carry out the parameter setting in experiment is carried out, click after revising and confirm meeting prompting " setup failed ".Before experiment was unlocked, in spectral module 2, shutter was closed, and reflection enters power meter to laser through spectroscope.Experiment is when being unlocked, and in spectral module 2, shutter is unlocked, and removes spectroscope, allows laser directive Laboratory Module 1.After starting observing and controlling, this system sends the measurement instruction by processor 5 to power measurement module 8 according to the observing and controlling time of setting on time.Power measurement module 8 receives measures the shutter of closing after instruction in spectral module 2, spectroscope is moved in laser optical path, and the spectroscope of laser in spectral module 2 of laser output, reflection enters power meter probe 7 and is detected by power meter.Simultaneous processor 5 sends the instruction that obtains laser power at that time by RS232 communication data alignment power meter, power meter receives the digital value that the backward processor 5 of instruction returns to current power.After the target component that the actual parameter that processor 5 detects by contrast and user arrange, determining whether needs regulate and how to regulate.When not needing to reconcile, open the shutter in spectral module 2, spectroscope is shifted out light path, wait for observing and controlling next time.Regulate as needs, after processor 5 is made regulation scheme, drive the rotation of laser power adjusting knob by the rotation of stepping motor in laser control platform 4, complete corresponding processing scheme with this, realize the Output optical power of stable laser, open the shutter in spectral module 2 when laser power is stabilized in the permissible error scope again, spectroscope is shifted out light path, continue to wait and be with observing and controlling next time.Above mode of operation is fit to the spectroscope of all proportions.When spectroscope is not total reflective mirror, also can adopt working method 2, be that in laser works, spectroscope is in light path always, power meter is measured catoptrical power always, the direct directive Laboratory Module 1 of transmitted light, once finding that performance number exceeds allowed band and can make adjusting, this pattern is not used the observing and controlling cycle.The dual mode applying flexible rationally uses the best in conjunction with demand.
Described spectral module 2 comprises shutter, blade and spectroscope.In working method 1, spectroscope and blade are fixed together, and blade blocks the light of spectroscope transmissive.In working method 2, spectroscope is fixed on the light hole of shutter, and when beginning experiment opens blade and allow light inject Laboratory Module 1 to open experiment, closes blade when experiment finishes and blocks light and inject Laboratory Module 1 and finish experiment.
Demonstration and input module 6 are comprised of the ranks membrane keyboard of YM12864 liquid crystal display screen and 4 * 4.
This practical laser power real-time namely can also can be controlled platform by embedding and use independently as instrument and the external use of laser, combines together with the laser control platform, has universality.
Claims (4)
1. laser power real-time, it is characterized in that: it comprises processor (5), show and input module (6) power measurement module (8), the laser control platform (4) that is connected with laser (3) and for the spectral module (2) of the exit end that is placed on laser (3); In a part of laser generation of spectral module (2) transmission, a part of laser reflects; The input of processor (5) is connected with the output of demonstration with input module (6); The output of processor (5) is connected with spectral module (2), laser control platform (4), demonstration and the input of input module (6) respectively; Processor (5) is connected through the output of power measurement module (8) with power meter probe (7), and the input of power meter probe (7) is positioned at the catoptrical exit end of spectral module (2).
2. laser power real-time according to claim 1 is characterized in that: show and input module (6) is used for demonstration current lasers Output optical power state, operating time, and the observing and controlling target component is set; Target component comprises: the target power value that observing and controlling time, TT ﹠ C and needs are stable.
3. laser power real-time according to claim 1, it is characterized in that: described spectral module (2) comprises shutter, blade, spectroscope.
4. laser power real-time according to claim 1, it is characterized in that: processor (5) is comprised of the minimum system of embedded chip and work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624830 CN202949130U (en) | 2012-11-22 | 2012-11-22 | Real-time measurement and control system for laser power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624830 CN202949130U (en) | 2012-11-22 | 2012-11-22 | Real-time measurement and control system for laser power |
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| Publication Number | Publication Date |
|---|---|
| CN202949130U true CN202949130U (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220624830 Expired - Fee Related CN202949130U (en) | 2012-11-22 | 2012-11-22 | Real-time measurement and control system for laser power |
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| Country | Link |
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| CN (1) | CN202949130U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352891B (en) * | 2015-12-15 | 2018-02-16 | 重庆医科大学 | Urine desiccation analysis method and device based on beam splitter |
| CN108057953A (en) * | 2017-12-13 | 2018-05-22 | 广东正业科技股份有限公司 | A kind of laser-processing system and laser power control method |
| CN110299667A (en) * | 2019-05-13 | 2019-10-01 | 大族激光科技产业集团股份有限公司 | The control device and laser process equipment of laser constant power output |
| CN110429463A (en) * | 2019-08-09 | 2019-11-08 | 莆田学院 | A method of improving Laser Output Beam stability |
| CN110631804A (en) * | 2019-08-21 | 2019-12-31 | 大族激光科技产业集团股份有限公司 | Automatic testing method and device for optical fiber laser |
| CN111975234A (en) * | 2020-08-28 | 2020-11-24 | 无锡天隆光电科技有限公司 | Power self-calibration system for laser equipment |
-
2012
- 2012-11-22 CN CN 201220624830 patent/CN202949130U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352891B (en) * | 2015-12-15 | 2018-02-16 | 重庆医科大学 | Urine desiccation analysis method and device based on beam splitter |
| CN108057953A (en) * | 2017-12-13 | 2018-05-22 | 广东正业科技股份有限公司 | A kind of laser-processing system and laser power control method |
| CN110299667A (en) * | 2019-05-13 | 2019-10-01 | 大族激光科技产业集团股份有限公司 | The control device and laser process equipment of laser constant power output |
| CN110429463A (en) * | 2019-08-09 | 2019-11-08 | 莆田学院 | A method of improving Laser Output Beam stability |
| CN110631804A (en) * | 2019-08-21 | 2019-12-31 | 大族激光科技产业集团股份有限公司 | Automatic testing method and device for optical fiber laser |
| CN111975234A (en) * | 2020-08-28 | 2020-11-24 | 无锡天隆光电科技有限公司 | Power self-calibration system for laser equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20151122 |
|
| EXPY | Termination of patent right or utility model |